Thomas Russ Deacon (3 January 1865 – 30 May 1955) was a Canadian politician, the 24th Mayor of Winnipeg in 1913 and 1914. Deacon was born in Perth, Canada West. After working in Northern Ontario lumber camps, he returned to school, eventually graduating in 1891 with a civil engineering degree at the University of Toronto. After working on the water systems in North Bay, Ontario and on gold mining in Rat Portage, Deacon moved to Winnipeg in 1902 and by 1906 joined the city's council.